HTML Tag Error Checker

Name: HTML Tag Error Checker
Author: macha

By: macha

Check the HTML start and end tags for problems.

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Features & Capabilities

The HTML Tag Error Checker Chrome extension helps web developers and designers automatically detect errors in HTML code, focusing on the correctness of start and end tags. It highlights issues by displaying the total number of errors prominently on the extension icon and provides detailed results in a dedicated tab for easy review.

Key features include automatic checking on customizable websites, exclusion options for sites you want to skip, and tailored warning rules to suit various coding standards. Additionally, it supports in-depth analysis of HTML files, enabling developers to maintain clean and valid markup. The extension operates entirely locally using JavaScript, ensuring that no data is sent externally and maintaining user privacy. Note that its behavior may vary on pages with forms such as login screens.

User Growth & Download Statistics

Add-on Developer Tools Programming

By:

macha

Daily users:

77 -1

Version:

16.3.1 Last updated: 2026-03-30

Version code:

6201119

Creation date:

2024-05-15

Risk:

Permissions:

Content scripts matches:

<all_urls>

Size:

1.70MB

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-19

Compare stats and ranking:

Ranking

# 12,762 ▼ 68

Other rankings

#6 in error keyword 16 #28 in html keyword 41 #76 in checker keyword 69 ▼ 1#79 in problem keyword 9

For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

macha

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/html-tag-error-checker/

Is HTML Tag Error Checker Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

HTML Tag Error Checker requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

HTML Tag Error Checker is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
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Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****